期刊
DALTON TRANSACTIONS
卷 43, 期 7, 页码 2772-2780出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt52875h
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资金
- Jiangsu Planned Projects for Postdoctoral Research Funds [1202040C]
- College Natural Science Research Program of Jiangsu Province [13KJB610003]
- Zhenjiang Industry Supporting Plan [GY2013023]
- Zhenjiang Social Developing Plan [SH2013002]
- Research Foundation for Talented Scholars of Jiangsu University [11JDG149, 10JDG133]
Ternary Ag/Ag2S/Ag3CuS2 hollow microspheres were synthesized via an in situ ion-exchange method using Cu7S4 hollow submicrospheres as the template. The as-obtained Ag/Ag2S/Ag3CuS2 composite exhibited a well-defined uniform hollow microsphere morphology with an average diameter of about 1.3 mu m. The photocatalytic property of the as-prepared Ag/Ag2S/Ag3CuS2 hollow microsphere composite was investigated by the decomposition of methyl orange (MO) under visible light irradiation (lambda > 420 nm). It was shown that the photocatalytic activity of the Ag/Ag2S/Ag3CuS2 hollow microsphere was higher than those of Ag/Ag2S, Cu2O, Cu7S4 and P25 for the photodegradation of MO under visible light irradiation. Radical scavenger experiments demonstrated that superoxide radicals and holes were the main reactive species for MO degradation.
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